如何在VB.NET中正确使用ProgressBar

我必须在我的VB.NET程序中使用进度条,其行为与VB6中的进度条非常不同.例如,如果我有一个程序通过某个循环填充datagridview并显示进度条的进度发生了什么？
Datagridview填充率为100％,而进度条达到约50％！

这是用于说明问题的示例程序.
创建一个新项目,添加一个Windows窗体,只需在Form1的代码上复制此代码.

Public Class Form1

Dim myMax As Integer = 100000
Dim pb As New ProgressBar
Dim dgv As New DataGridView
Dim WithEvents ti As New Timer

Private Sub Form1_Load(ByVal sender As Object,ByVal e As System.EventArgs) Handles Me.Load

    With Me
        .Width = 400
        .Height = 250

        .Controls.Add(pb)
        With pb
            .Maximum = myMax
            .Dock = DockStyle.Bottom
        End With

        .Controls.Add(dgv)
        With dgv
            .ColumnCount = 2
            .Dock = DockStyle.Fill
            .Columns(1).AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill
            .Visible = False
        End With
    End With

    ti.Start()
End Sub

Private Sub OnFormLoaded(ByVal sender As Object,ByVal e As EventArgs) Handles ti.Tick
    ti.Enabled = False
    ti.Dispose()

    Dim temp As Integer

    For t = 0 To myMax

        If t Mod 100 = 0 Then
            pb.Value = t
            pb.Refresh()
            Application.DoEvents()

            temp += 1

            dgv.Rows.Add(New String() { _
                t.ToString,_
                temp.ToString _
                })
        End If
    Next
    pb.Value = myMax
    pb.Visible = False
    dgv.Visible = True
    dgv.Focus()

End Sub
End Class

此代码创建几个控件,加载表单并启动循环以填充数据并显示进度条中的进度.在该程序隐藏了一个进度条并显示datagridview后,具体(真实世界)程序的常见情况如何.

问题在于,尽管datagridview填充和更新进度条都来自同一循环(步长为100),datagridview的填充结果比进度条显示进度快得多,并将其隐藏在约50％.

这与VB6有很大不同,其中填充和显示完全同步,并且在进度条达到100％的值后将显示网格.

如何在VB.NET中显示进度条的这种功能显示代码？
我尝试刷新progressbar和DoEvents但这还不足以让它按预期工作.

If t Mod 100 = 0 Then
        pb.Value = t
     If pb.Value > 0 Then pb.Value -= 1

        temp += 1

        dgv.Rows.Add(New String() { _
            t.ToString,_
            temp.ToString _
            })
    End If